Shut-off and pipe-drilling device



(No Model.) 5 SheetsSheet 1i S. G. HOWE. SHUT-OFF AND PIPE DRILLING DEVICE.

No. 592,007. Patented Oct. 19,1897.

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v -5 Sheets-Sheet 2. S. G. HOWE.

Patented Oct. 19, 1897'.

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(No Model.)

SHUT-OFF AND PIPE DRILLING DEVIGEL No.-59Z,0-07.

IIII a I WITNESS Wfl- 4 ,(No'ModeL) SHUT-OFF AND PIPE DRILLING DEVIGE. No. 592.007;

Patented Oct. 19, -1897.

INVENTOJ'L wnwzsszs u: "cums PETERS cu. PHOTO-MIND wxsnmaiou n c (No Model.) 5 Sheets-Sheet 5.

S. G. HOWE.

. SHUT-OFF AND PIPB'DRILLING DEVICE. No. 592.007. Patented Oct. 19, 1897.

fillllllll TERS coy, PHOTO-LUNG WASHINGYON a c N TED STATES SOLON G. HOWE, OF DETROIT, MICHIGAN.

SHUT-OFF A ND PIPE-DRILLING DEVICE.-

SPEGIFIGATION forming part of Letters Patent No. 592,007, dated October 19, 1897. Application filed March 30, 1897. Serial No. 629,976. (No model.)

To all whom it ntcty. co n/06772,:

Be it known that I, SoLoN G. HOWE, a citizen of the'.United States, residing at Detroit,

county of Wayne, State of Michigan, have invented a certain new and useful Improve.

ment in a Shut-01f and Pipe-Drilling Device; and I declare the following to be a full, clear,

' and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, ref-' arrangement of devices hereinafter described and claimed, and illustrated in the accompanyin g drawings, in which- Figure 1 is a plan View. Fig. 2 is a View in.

section on the line 2 2,'Fig.1. Fig. 3 is a view in section on the line 3 3, Fig. 2, show ing parts in elevation. Fig. 4 is a View in section on the line 4 4, Fig. 3. Fig. 5is a side elevation showing the pipe in section. Fig. 6 is a rear end view of the same. Fig. 7 is a detail View of one of the connecting-arms (l Fig. 8 is a view in section on the line 8 8, Fig. 1. Fig. 9 is a view in detail of the plate F.'

Fig. 10 is a view in detail of the feeding mechanism. Fig. 11 is aview in section on the line 11 11, Fig. 1. Fig. 12 is a detail view of a part of the plate or bar 35, showing the spring to retract the pawl. Fig. 13 is a sectional 'view ofthe hinge-valve. Fig. 14 is a view of the sleeve with the wing-gate, showing a modification in the form of the sleeve.

Fig. 15 is a detail view,partly in section, showing thepacking between the sleeve and pipe. Fig. 16 is a detail view of the reducing-ring E. Fig. 17 is a view of the same in section on the line 17 17, Fig. 16. Fig. 18 is adetail view showing a modification of certain features of my device. Fig. 19 is a detail View showing a preferred construction of the cutter-head. Fig. 20 is a detail view of the armcap 0 Fig. 21 is a detail view of the armcap 0 Fig. 22 is a detail view of the looking device to lock the cap 0 and the gate.

Fig. 23 is a view in section on the line 23 23,

Fig. 22. Fig. 24 is a View in section on the line 24 24, Fig. 3. Fig. 25 is an inner face View of the head G.

Certain features of my present invention are designed as improvements on an analogous device for which United States Letters Patent were granted to me July 7, 1896, No. 563,488, for pipe tapping and connecting devices.

'One object of my invention is to provide economical means of shutting off the flow of Water from a water-main to a branch or hydrant connected therewith, portions of the device being designed to be used as a shut-off for hydrant repairs, or to be abandoned after serving as a temporary shut-ofi, where it is desired to locate a regular dividing-gate at any particular place distant from the pipemain-as, for example, on a curb-lineto facilitate location when covered with dirt or snow.

Another object of my invention is to combine with my improved shut-off device a novel pipe-drilling device to drill the pipe for making a connection therewith without shutting off the service while the connection is being made.

I carry out the objects of my invention in the following manner:

The numeral 1 denotes a water-pipe. A represents any suitable sleeve engageable on said pipe. The sleeve may be secured to the pipe in any suitable manner, as by wroughtiron bands B passed about the pipe, the sleeve being provided with cars a, through which the ends of .the'bands pass, nuts a serving to tighten the bands in engagement with the sleeve.

My invention also contemplates the employment of a supplemental cast-metal yoke B, where wrought-iron bands are liable to be attacked by oxidation or electrolysis. When this cast-metal yoke is required, it is desirable to have it so applied that it maybe made a supplemental fastening, to be appliedafter the sleeve has been secured to the pipe and properly calked, said yoke,jpreferabl y, not being relied upon to .get a compression of the sleeve and its packing upon the pipe, the yoke being also removable, so as to permit repairs to be readily made to the sleeve connection, if required. The yoke may be secured with the sleeve in any proper manner. Thus, for example, as shown in the drawings, the sleeve may be formed with additional ears a and the extremities of the yoke with hooks or shoulders I), wedges B holding the yoke and sleeve firmly together. The sleeve is also formed with hook-lugs a to engage a corresponding lip b in the lower edge of the outer wedge and prevent a lifting action as the wedge is being driven into place. A suitable packing B preferably a compressible packing, is located bet-ween the sleeve and the pipe, the sleeve being constructed with a suitable recess to receive the packing, as shown.

3 is a cushion, preferably of wood, extending outward from the packing B said cushion being used to take the strain, in case any unevenness exists between the radius of the pipe and the radius of the adjacent portion of the sleeve, in the act of compression.

B is a lead band surrounding the cushion B and the packing B on the two sides and edges of said packing and cushion, said lead band serving a double purpose, which experience has shown desirableviz., to secure a greater degree of firmness in the union of the sleeve upon the pipeand also furnishing an additional water-packing, and one that may be readily calked or hammered up from the outside, when such calkin g may become necessary, the adjacent portion of the sleeve being so constructed as to permit the ready calking of the lead band, if desired.

In making certain connections, as in connecting an eight-inch branch upon an eightinch pipe, I prefer to employ a supportingplate B, engaged upon the pipe-main under the wrought-iron bands B, and under the yoke 13, if said yoke is employed, said supportingplate being constructed with ribs b embracing the bands ll, which, in this case, may be made of round iron bars, asindicated in Fig. 3. This plate, it will be seen, will support the pipe against any liability of breakage, on account of so large a out being made in the main.

To prevent anyliability of breakage of the plate, suitable pockets are made at its extremities between the edges of the plate and the pipe to receive a lead packing, (indicated at W.)

\Vithin the outer end of the sleeve I hinge or journal a wing-gate valve 0, the hinge-pin or journal being shown at C, the extremities thereof being supported in the sleeve, as shown. The gate is secured to said hingepin by connecting-arms C My invention contemplates the construction of the hingepin 0 not only to constitute a journal for the gate 0, but also to serve, at the same time, as a two-way valve, the hinge-pin being channeled, as indicated at c, and formed with a by-pass having two channels 0 and 0 communicating with the channel 0 and diverging so as to be capable of being opened on each side of the gate, when in closed position, when it is desired to equalize the pressure. To this end the adjacent portion of the sleeve is also formed with passage-ways a andcd, with which the channels or ports a and o in the hinge-pin may be made to register, as shown in Fig. 13, upon a proper movement of the hinge-pin. To provide for this opening and closing of the by-pass through the hinge-pin, as desired, I provide at each end of the hingepin arm-caps (Q and C, said caps encircling the hinge-pin. The cap C is formed with a square orifice, into which a squared portion of the hinge-pin engages, while the cap 0 is formed with a circular orifice to permit the hinge pin being passed therethrough into place, a ring C being thereafter located in the circular orifice of said cap, said ring formed with a square orifice to engage a squared portion of the hinge-pin, the ring being locked in position by a key or pin 0 These caps are cut away or recessed on their peripheries a desired distance, as shown at 0. These caps are made to turn with and by the rotation of the hinge-pin. The arms 0 are constructed with ribs 0 extending across the recesses c of said caps. As so constructed the hingepin may obviously be rotated the length of said recesses in said caps before the ribs 0 of said arms will engage against the end walls of said recesses. This provides for a certain idle movement of the hinge-pin before said caps will engage the ribs of said arms to carry said arms therewith on a further rotation of the hinge-pin to swing the gate. During this idle movement of the hinge-pin its ports 0 and 0 may be brought to register with the passageways a and a within the case, so that the bypass shall be opened and permit an equalization of the pressure. \Vhcn the arms 0 have reached the limit of said rccesses in said caps, the further movement of the hinge-pin will swing the gate. To permit the ready location of the hinge-pin in place, one side of the sleeve is formed with an orifice of sufiicient diameter to admit the pin, as indicated at 0. the aperture being closed in the case about the pin by a nut a, said nut being recessed on its outer face to admit of a suitable packing a and over which is engaged a nut 0, upon which is a cap G ongageable by a gate-wrench.

To hold the cap G and consequently the gate, in place, the cap may be formed with an car a, in which is located a pin 0 to engage in suitable perforations of the case. The pin 0 is grooved to receive a set-screw c to limit the movement of the pin. The pin may be formed with an eye 0 en gageable by a hooked rod, by which the pin may be lifted to disengage it and permit the rotation of the hinge-pin, the set-screw c limiting the movement of the pin, so that it will not be lifted more than is necessary to allow the gate to swing freely. On the opposite end of the hinge-pin is a packing-nut c and jam-nut o To secure the gate C to the connectingarms 0 said arms are constructed at thelr outer ends each with a square or1fice C.

IIO

The gate is constructed with lugs C", also formed each with a' square orifice a square pin 0 uniting the connecting-arms with said lugs, the orifices insaid lugs being made sufficiently smaller than said orifices in the arm to allow a slight freedom of action,rto compensate for any unevenness that might exist in the gate and the gate-seat o In order to locate the pin 0 in place to engage the gate with the arms 0 the sleeve is formed with an orifice, as atA, a cap A closing said orifice.

To center the cutter-head, hereinafter to be described, I form the sleeve A near the extremity toward the pipe with an inwardlyprojecting flange A This flange may either be turned out by a lathe or cut out by the cutter itself in the process of drilling the vpipe, said flange serving the purpose of a guide to steady the cutter in cutting through the pipe. The flange is set back a little distance from the pipe, so as to form a chamber A between it and the pipe to receive the chips from the cutting-tool.

The sleeve may be formed with a drip-cock a located toward its outer end, through which any water may be drained off therefrom outside the closed gate.

It will be seen that the particular construction of my improved gate and hinge-valve forms a very economical and secure device. Their construction also renders it possible to use the same in a spigot-end sleeve, as indicated in Fig. 14, as well as in a bell-end sleeve, inasmuch as my invention contemplates any suitable construction of the sleeve as coming within its scope.

The advantages of the wooden cushion B extending from the packing are obvious, in that such a cushion forms an elastic substance which compensates for any unevenness that may exist in the pipe circumference, thereby preventingan undue strain on the sleeve-casting in drawing the sleeve into place upon the pipe, while it also forms a stop and guide for the lead packing poured around the outer edge of the sleeve at its junction with the pipe-main.

In combination with the sleeve and myimproved wing-gate and hinge-valve, I have shown a drilling device provided with a spindle D, carrying a cutter-head D. Any suitable arrangement of gears may be employed for operating said cutter-head. The drilling device maybe engaged upon the sleeve in any suitable manner'as, for instance, by means of a reducing-ring E and a tie-plate F.

G is a head used to secure certain parts of the cutting device upon the tie-plate F. The tie-plate is secured to the reducing-ring in any desired manner, as by screws e. The head G is united to the tie-plate F in any proper manner, as by stud-pins F. The reducing-ring is provided with set-screws E to aline the reducing-ring centrally with the sleeve. Upon the set-screws are jam-nuts E to lock the screws in position to hold the reducing-ring firmly in place in the operation of the device. The spindle D is sleeved through the head G, as shown. Upon said spindle is located a gear D whichis shown secured in placeby means ofa ring-plate D made in halves, said halves being secured tothe head G by means of screws d. The plate D is formed-with an inwardly-proj ectin g flange d,

fitting into a corresponding groove d in the,

hub of said gear. By this means the gear is held in place.

H denotes a collar bolted to the gear D to provide for a keyway d for a key 61 to operate in, by which the cutterhead is actuated by the turning of said gear. Meshing with the gear D is apinion J, on the spindle J of which is located an intermediate, gear J keyed to the spindle J The intermediate gear J 2 isactuated by pinions'K K.

K denotes the j ournal-bearing in which the journals of the pinion K rotate. The spindle J is keyed in its bearingby means of a setscrewj to prevent endwise movement thereof. Set-screws It also engage the journalsof the gears K to prevent endwise movement.

L denotes cranks by which the pinions K may be operated. Instead, however, of using the pinions K K and the intermediate gear J I may employ a worm-gear, as shown in Fig.

18, in which M denotes a worm' meshing with aworm-gear M, which may be secured upon the shaft J the intermediate gear J being dispensed with, the worm gear M being substituted therefor. The shaft of the worm M is provided with cranks L.

To feed the cutter-head, I employ a feedscrew, (indicated by the numeral 20,) one end of which engages a countersunk orifice (indicated at 21 on the adjacent end of the spindle D of the cutter-head.

To automatically actuate the feed-screw, I have shown a pinion 22, meshing with the gear D The hub of said pinion rotates upon a shaft 23. To hold the pinion in place longitudinally of the shaft and yet permit its revolution thereupon, I provide a frictioncollar 24, made in halves, and held upon a grooved ring 25 upon said shaft by means of bolts 26, said collar also having a grooved connection with the hub of the pinion, asindicated at 29. The opposite side of said pinion is engaged with a sleeve 30, having telescopic connection with an additional sleeve 31, suitable clamps 32 being provided to hold the sleeves and 31 in adjusted position. This telescopic connection of the sleeves 30 and 31 will provide for the adjustment of the feed mechanism to different lengths of sleeves A. Upon the sleeve 31 is a clamping-arm 33, with which is connected a friction-1 01134.. A pressure-bar 35 receives the inner end of the feed-screw, said feed-screw being prevented from turning in said pressure-bar in any suitable manner, as by having the feedscrew cbnstructed with a square head 36, located in a square orifice in said pressure-bar to prevent the turning of the feed-screw.

The pressure-bar is clamped upon the shaft 23, as indicated at 27. The pressure-bar is also clamped upon an additional shaft or bar 18, as indicated at 19, the clamp 19 being preferably a double clamp to allow for any possible spring in the bars 23 and 18. The bar 18 is secured to the head G in any suitable manner, as by a nut 28, a nut 47 engaging the shaft 23 with said head G. Upon the pressure-bar 35 is engaged a sliding bracket 52, said bracket sliding over ways 37 and spring-case 38, and carrying a pawl 39, engageable with a ratchet-wheel 40. \Vith the ratchet-wheel is firmly engaged a nut 41, as by screws 42, the rotation of said nut causing the feeding of the screw 20. Between the ratchet-wheel and the bar 35 is a ball-bearing 43. The nut 41 is provided with operatinghandles 44, whereby the nut may be actuated by hand, instead of automatically by the devices hereinbefore described, whenever it is desired. \Vhenever the friction-roll 34 is rotated, it will evidently contact with the bracket 52 and force it in the opposite direction, causing the pawl 39 to throw the ratchetwheel 40 a corresponding distance and consequently the nut 41. The throw of the bracket 52 may be governed in any suitable manner. Thus, for example, the pressurebar 35 may be provided with a series of pinholes 51, spaced to correspond with the teeth upon the ratchet-wheel. A pin set in any one of said pin-holes will limit the retraction of said bracket, and consequently the throw given to the pawl, so that the pawl may give to the ratchet-wheel a throw of a single tooth, or more, as may be desired, upon each rotation of the roll 34. The bracket is retracted by the spring in the spring-case 38. It will be obvious that rotation is given to the nut 41, while the feed-screw 20 is prevented from rotating. In this manner the operation of the feed-screw is made positive, and said screw cannot be operated except by design.

After the reducing-ring and tie-plate are adjusted in position upon the end of the sleeve, said ring and tie-plate are securely held in place by tie-rods P, having a jointed engagement with the tie-plate at one end, as indicated at P, to permit said rods to be spread or closed together at their opposite ends to accommodate the different diameters of pipe on which they are applied. The 0pposite ends of said rods are threaded for a sufficient distance to allow sleeve-nuts P to slide into engagement with the lugs a. These sleeve-nuts are'preferably slightly curved on their outer face to engage a corresponding curve on the lugs Ct on the sleeve, allowing for variations which the line of the tie-rods might have in the circle of a small or large pipe. Jam-nuts P are used to lock the sleevenuts in position. The sleeve-nuts are also provided with hook-bolts P hooking over the bands 13 to prevent the tie-rods from slipping off from their engagement with the lugs a. Thumb-nuts 13 upon the outer ends of the hook-bolts secure the tie-rods to the bands B, preventing the tie rods from dropping away when the jam-nuts P are loosened for any cause.

The reducing ring is constructed with guide-ribs E to properly center and aline the cutting mechanism with the ring A of the end of the sleeve A.

In Fig. 14 a reducing-ring is shown secured upon a spigot end of the sleeve A, while in the remaining figures the reducing-ring is shown secured upon a bell end.

The cutter end is formed, preferably, with a cast head D provided with a diaphragm D perforated, as indicated at d to permit the water to fiow therethrough to equalize the pressure while the cut is being made, and also allow the insertion of a bar to drive out the core cut from the pipe after the machine is taken off. The head D is rigidly engaged upon the spindle D and held from sliding upon the same by means of a headed screw D, the head of the screw lapping over the joint of the spindle with said diaphragm and its hub.

To facilitate and eheapen the construction of the cutter-head, I prefer to engage with the head D a cutter-blade D rabbeted over the lower end of the head D, as shown, and united thereto by rivets 61 This permits the cutter-blade D being made of a single square bar of steel split and spread in a well-known manner, thereby avoiding a weld, so as to form a blade without a weld. The cutterblade is preferably made with teeth out in gangs, a deep out being made at every third or fourth tooth. By this method I secure the largest possible number of teeth on the cutter-blade, which insures an easy cut and increased durability, avoiding the necessity of sharpening as frequently as would otherwise be required.

The head G is provided with a petcock Q, whereby the watenmay be drawn olf from the chamber between the cutter-head and the head G to permit the retraction of the cutterhead.

The spindle D is preferably provided with a handle-bar Q, whereby said spindle may be retracted. It is obvious that the pawl 39 may be thrown out of engagement with the pawlwheel when it'is desired to actuate the nut 41 by hand. Between the reducing-ring E and the end of the sleeve I locate a packing E Between the reducing-ring and the tie-plate is additional packing, (indicated at F1) while between the tie-plate and the head G, I locate suitable packing, (indicated at G.)

\Vhile I have shown and described a bypass through the hinge-pin, yet I would have it definitely understood that certain features of my invention are adapted and calculated to be used with a sleeve and shut-off valve of any suitable construction, and provided with any desired construction of a by-pass to secure the necessary equalization of the pressure, another form of the by-pass being shown in dotted lines in Fig. 3 at e Thus the cut ting and feeding mechanism herein described may be employed with the sleeve and shut-off valve shown in my patent above referred to.

So, also, I would have it understood that I do not limit myself in all cases to the employment of the compressible cushion B as this cushion might in certain cases be omitted, within the scope of my invention, and the lead packing merely surround the compressible packing B Fig. 1 shows the spindles upon which the cranks L are engageable, the cranks being omitted.

It will be evident where my compressible packing is used with the lead packing on the outside thereof, should the lead be attacked by electrolysis, as is very liable to be the case, under various circumstances, and the lead packing thereby be injured and caused to leak, the inner wood packing receiving the pressure of the Water relieves the strain which would otherwise be exerted upon the lead packing, and thereby prevent the lead packingfrom being blown out from its seat, as is liable to be the result where the inner compressible packing is not employed. My inner compressible packing prevents any leakage under these circumstances, as well as the blowing out of the lead packing, so that when any such injury to the lead packing is discovered it may readily be remedied by hammering the lead packing firmly into place.

What I claim as my invention is 1. The combination of a sleeve, a shut-off valve to seat within the sleeve, and a hingepin carrying said valve, said hinge-pin and sleeve having a by-pass to open therethrough on both sidesof the seat of said valve substantially as described.

2. The combination of a sleeve, a shut-off valve to seat within the sleeve, and a hingepin journaled in said sleeve carrying said valve, said sleeve and hinge-pin having registrable ports forming a bypass to open through the sleeve and hinge-pin on both sides of the valve-seat, substantially as de-' scribed.

3. The combination of a sleeve, a shut-off valve to seat in said sleeve, and a hinge-pin actuating said valve, said sleeve and hingepin provided with registrable ports forming a by-pass to open therethrough on both sides of said seat, said hinge-pin having an idle movement to cause said ports to register before actuating said valve, substantially as described.

4:. The combination of a sleeve, a shut-0H valve'to seat within said sleeve, a hinge-pin, and connecting-arms engaging said valve with said hinge-pin, said hinge-pin and sleeve formed with a by-pass to open on both sides of the valve-seat, substantially as described.

5. The combination of a sleeve, a shut-0E valve to seat within said sleeve, a hinge-pin provided with arms connecting the valve therewith, and recessed caps engaged upon the hinge-pin, said hinge-pin and sleeve havsaid by-pass upon the actuation of said shutoffvalve, substantially as described.

7. The combination of a sleeve permanently engageable upon a waterpipe, a hinge-pin journaled-in said sleeve, a swinging shut-off valve connected with said hinge-pin to seat within the sleeve, a bypass to open upon both sides of the valve-seat, and means actuated by the movement of the hinge-pin to open and close said by-pass substantially as described.

' 8. The combination of a sleeve permanently engageable upon a water-pipe, a hinge-pin journaled in said sleeve, a swinging shut-0E valve carried by said hinge-pin to seat within the sleeve, a by-pass to open upon both sides of the valve-seat, and means actuated by the movement of the hinge-pin to open and close said by-pass, said hinge-pin having a limited movement to open said by-pass before opening the shut-oif valve, substantially as described.

9. The combination with a sleeve'engageable upon a Water-pipe, of means to secure the sleeve upon said pipe, said means consisting of wrought-metal bands, and a supplemental cast-metal yoke, said bands and yoke constructed to pass about the pipe and to be engaged with said sleeve, for the purpose described.

10. The combination of a pipe, a sleeve engageable upon the pipe, a compressible packing between the sleeve and pipe, means to engage the sleeve upon the pipe and to compress said packing therebetween, and a lead packing on the sides and edges of the compressible packing, substantially as described.

11. The combination of a sleeve, means to secure the sleeve upon a pipe, and a supporting-plate held in place between said means and the pipe, substantially as and for the purpose described.

12. The combination of a sleeve engageable upon a water-pipe, means to engage the sleeve upon said pipe, an additional supplemental yoke to encircle a water-pipe and engageable with the sleeve to assist in holding the sleeve upon the pipe, and wedges to hold the yoke and sleeve firmly together, substantially as set forth.

13. The combination of a sleeve constructed with hook-lugs a ,a yoke en gageable therewith to secure the sleeve upon a water-pipe, and wedges to hold the yoke and sleeve firmly together upon the pipe, the outer wedges formed with a lip 12 to engage said hook-lugs to pre- ICO vent a lifting action as the wedges are driven into place, substantially as described.

14:. The combination of a sleeve, a hinge pin journaled therein, a swinging shut-off valve, arms connecting said shut-off valve with the hinge-pin, and arm-caps encircling the hinge-pin and rotatable with the hingepin, and aby-pass, said caps recessed on their peripheries to permit the hingepin being rotated the length of said recesses before actuating the shut-off valve, substantially as set forth.

15. The combination of a sleeve formed with an orifice to admit a hinge-pin, a shut-off valve carried by said hinge-pin, a nut to close said orifice, a packing-nut engageable upon the first-mentioned nut, and a cap engageable on the hinge-pin, substantially as set forth.

16. The combination of a sleeve formed with an orifice to admita hinge-pin, anut to close said orifice, a packing-nut engaged therewith, a cap engaged with the hinge-pin, and alocking-pin in connection with said cap, substantially as described.

17. The combination of a sleeve formed with an orifice to admita hinge-pin, anut to close said orifice, a packing-nut engaged therewith, a cap engaged with the hinge-pin, and a locking-pin having a limited movement in connection with said cap, substantially as described.

18. The combination of a sleeve, a hingepin journaled therein provided with connectin g-arms, a shut-off valve or gate connected with said arms, said gate constructed with lugs provided with square orifices, and said connecting-arms constructed with square orifices at their outer ends, and a square pin uniting the connecting-arms with said lugs, substantially as set forth.

19. The combination of a sleeve, ashut-oif valve and a reducing-ring engageable upon the outer end of the sleeve, said reducing-ring constructed with guide-ribs, for the purpose described.

20. The combination withasleeve of a head engaged thereupon, a cutter-spindle sleeved through said head, a gear provided with a hub mounted upon said spindle, and a ringplate made in halves secured to said head and having a tongue in grooved connection with the hub of said gear, and mechanism to actuate said gear, substantially as and for the purpose described.

21. The combination of a head, a reciprocatory cutter-spindle sleeved through said head, a feed-screw bearing against said spindle to feed the spindle to its work, mechanism to advance the feed-screw, and means to hold the feed-screw from turning, said spindle being independently retractable, substantially as described.

22. The combination of a reciprocatory cutter-spindle, a support therefor, a feed-screw contacting with the end of said spindle, and

mechanism to automatically feed said screw, said spindle being independently retractable, substantially as set forth.

23. The combination of a reciproeatorycuttor-spindle, a support therefor, a feed-screw to feed the spindle, automatic mechanism to advance the feed-screw, and means to hold the feedserew from turning, said spindle being independently retractable, substantially as set forth.

24. The combination of a cutter-spindle, a support therefor, a feed-screw to advance said spindle, a removable pressure-bar to receive one end of the screw, mechanism to advance the feed-screw, and means to prevent the feed-screw from turning within the pressurebar, substantially as described.

25. The combination of a cutter-spindle, a support therefor, a feed-screw, a removable pressure-bar to receive one end of said screw, a gear mounted upon said spindle, and automatic mechanism actuated by said gear to operate the feed-screw, said feed-screw being non-rotatable, substantially as described.

26. The combination of a reciprocatory cutter-spindle, a head through which the spindle is sleeved,mechanism to drive said spindle,automatic and interchangeable feeding devices to feed the spindle to the work, and a pressurebar carrying the feeding mechanism, said pressure-bar advaneeable toward the cutterspindle, substantially as described.

27. The combination with a reciprocatory cutter-spindle, a support therefor, a pressurebar, a feed-screw engaged therewith to advance the cutter-spindle, bars 18 and 23 connecting the pressure-bar with said support, sleeves 30 and 31 having a telescopic connection one with the other upon the bar 23, a feedpinion geared with the cutter-spindle, a friction-roll mounted upon the sleeve 31, a nut to feed the feed-screw, a ratchet-wheel to drive said nut, a sliding bracket, and a pawl carried by said bracket to engage the ratchetwheel, said friction-roll engageable with said bracket, substantially as and in the manner described.

28. The combination of a reciprocatory cutter-spindle a removable prcssure-bar, a feedserew, a ratchet-wheel located upon the feedscrew, and a feed-nut 41 engaged with the ratchet-wheel to reciprocate the feed-screw, substantially as described.

29. The combination of a reciprocatory cutter-spindle, a support therefor, bars 18 and 23 connected with said support, a pressurebar clamped to the bars 18 and 23, and a reciprocatory feed-screw carried by the pressure-bar to advance the cutter-spindle, said pressure-bar having a double clamp to engage one of the bars 18 and 23, substantially as described.

30. The combination of areciprocatory cutter-spindle, a head provided with aperforated diaphragm, a headed screw extending longitudinally of the spindle engaging the head to said" spindle, anda cutter-blade secured to said head, substantially as set forth.

31. The combination with a reciprocatory cutter-spindle of a head keyed to said spindle and provided with a perforated diaphragm, a

headed screw extending longitudinally of the spindle engaging the head to the spindle to hold the head from sliding upon said spindle, and a cutter-head secured to said head,-substantially as described.

32. The combination of a sleeve en gageable upon a pipe and provided with lugs, a tieplate secured upon said sleeve, tie-rods having a jointed engagement with the tie-plate, the opposite ends of said rods provided with sleeve-nuts to engage said lugs, and jam-nuts to lock the sleeve-nuts in place, substantially as described.

33. The combination of a sleeve provided with lugs, bands to engage said sleeve upon a pipe, a tie-plate, tie-rods connected to said tie-plate, sleeve-nuts engaged with the opposite extremities of the tie-rods to engage said lugs, jam-nuts to lock the sleeve-nuts, hooked bolts carried by the sleeve-nuts to hook over the bands, and thumb-nuts upon the outer ends of the hooked bolts to secure the tie-rods to the bands, substantially as described.

34. The combination of a sleeve, a hingepin, a swinging gate carried by said hingepin to seat within the sleeve, a by-pass to open through the sleeve and hinge-pin upon both sides of said seat, and means to hold the gate from closing without design, substantially as described.

35. The combination of a sleeve, a hingepin, a swinging gate to seat within the sleeve,

I connectingarms to connect the gate with said hinge-pin, a pin to engage said gate with the connecting-arms, said sleeve formed with an opening through which'the pin may be engaged in place with the connecting-arms and gate, and means to close said opening, substantially as described.

36. In combination a pipe, a sleeve, means to secure the sleeve upon the pipe, a compressible packing between the pipe and the sleeve, a compressible cushion extending outward from said packing to relievethe strain upon the sleeve in securing the sleeve to the pipe, and a lead packing about said cushion and packing, said cushion serving to form a stop for the lead packing around the sleevejoint, substantially as described.

37. The combinationof a sleeve, atie-plate, cutting mechanism carried by said plate, and

an interchangeable reducing-ring adjustably secured upon said sleeve, substantially as described.

38. The combination of a sleeve, a tie-plate, and tie-rods jointedly engaged with the tieplate, said tie-rods adjustably engageable with said sleeve, substantially as described.

39. The combination of a sleeve, a cutter, a' support therefor, an independent non-rotatable feedscrew to feed the cutter, a pressure-bar engaging said feed-screw and adjustably connected with said support, whereby the pressure-bar may be accommodated to various lengths of sleeves, substantially as described.

40. The combination of a cutter, a support therefor, means to rotate said cutter, a feedscrew to advance the cutter, a pressure-bar carrying the feed-screw and adjustably' connected with said support, an automatic device to actuate the feed-screw and telescoping sleeves carrying the automatic device, substantially as described.

41. The combination of a cutter, an adj ustable pressure-bar, an independent non-r0- tatable feed-screw to advance said cutter housed in said pressure-bar, and means to feed the screw, substantially as described.

42. The combination of a cutter-spindle, a removable pressure-bar, an independent nonrotatable feed-screw ri gidly held from turning in said pressure-bar to advance said spindle, and means to reciprocate the feed-screw, substantially as described.

43. The combination of a cutter, driving mechanism to actuate the cutter, an independent non-rotatable feed-screw, a drivingnut to actuate the feed-screw, and adjustable automatic devices to actuate said nut whereby the feeding of the screw may be regulated, substantially as described.

44. The combination of a sleeve, a reducing-ring, packing between said sleeve and ring, a tie-plate secured to the reducing-ring, packing between the tie-plate and ring,ahead secured to the tie-plate, packing between the head and tie-plate, and drilling mechanism carried by-said head substantially as set forth.

45. The combination of a pipe,'a sleeve engageable upon the pipe, an inner compressiand the pipe, means to engage the sleeve upon the pipe, and to compress said packing therebetween,. and an outer lead packing on the sides and edges of the compressible packing,

the compressible packing receiving the waterpressure and relieving the lead packing therefrom, for the purpose described.

. In testimony whereof I sign this specification in the presence of two witnesses.

SOLON G. HOWE. 

